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Which of the Following Gives the Area of the Circle x2+y2=1x^{2}+y^{2}=1

Question 95

Multiple Choice

Which of the following gives the area of the circle x2+y2=1x^{2}+y^{2}=1 ?


A) ∫−111−x2dx\int_{-1}^{1} \sqrt{1-x^{2}} d x
B) 4∫−111−x2dx4 \int_{-1}^{1} \sqrt{1-x^{2}} d x
C) 4∫011−x2dx4 \int_{0}^{1} \sqrt{1-x^{2}} d x
D) 2∫011−x2dx2 \int_{0}^{1} \sqrt{1-x^{2}} d x

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